diff --git a/includes/api/legacy/v1/class-wc-api-orders.php b/includes/api/legacy/v1/class-wc-api-orders.php
index a71ed5cc8ea..de02ee53c64 100644
--- a/includes/api/legacy/v1/class-wc-api-orders.php
+++ b/includes/api/legacy/v1/class-wc-api-orders.php
@@ -116,9 +116,9 @@ class WC_API_Orders extends WC_API_Resource {
 		$order_data = array(
 			'id'                        => $order->get_id(),
 			'order_number'              => $order->get_order_number(),
-			'created_at'                => $this->server->format_datetime( get_gmt_from_date( date( 'Y-m-d H:i:s', $order->get_date_created() ) ) ),
-			'updated_at'                => $this->server->format_datetime( get_gmt_from_date( date( 'Y-m-d H:i:s', $order->get_date_modified() ) ) ),
-			'completed_at'              => $this->server->format_datetime( get_gmt_from_date( date( 'Y-m-d H:i:s', $order->get_date_completed() ) ) ),
+			'created_at'                => $this->server->format_datetime( $order->get_date_created(), false, true ) ),
+			'updated_at'                => $this->server->format_datetime( $order->get_date_modified(), false, true ) ),
+			'completed_at'              => $this->server->format_datetime( $order->get_date_completed(), false, true ) ),
 			'status'                    => $order->get_status(),
 			'currency'                  => $order->get_currency(),
 			'total'                     => wc_format_decimal( $order->get_total(), 2 ),
diff --git a/includes/api/legacy/v1/class-wc-api-products.php b/includes/api/legacy/v1/class-wc-api-products.php
index 88d07ae4fb7..5002b265ec3 100644
--- a/includes/api/legacy/v1/class-wc-api-products.php
+++ b/includes/api/legacy/v1/class-wc-api-products.php
@@ -267,8 +267,8 @@ class WC_API_Products extends WC_API_Resource {
 		return array(
 			'title'              => $product->get_name(),
 			'id'                 => $product->get_id(),
-			'created_at'         => $this->server->format_datetime( $product->get_date_created() ),
-			'updated_at'         => $this->server->format_datetime( $product->get_date_modified() ),
+			'created_at'         => $this->server->format_datetime( $product->get_date_created(), false, true ),
+			'updated_at'         => $this->server->format_datetime( $product->get_date_modified(), false, true ),
 			'type'               => $product->get_type(),
 			'status'             => $product->get_status(),
 			'downloadable'       => $product->is_downloadable(),
@@ -347,8 +347,8 @@ class WC_API_Products extends WC_API_Resource {
 
 			$variations[] = array(
 				'id'                => $variation->get_id(),
-				'created_at'        => $this->server->format_datetime( $variation->get_date_created() ),
-				'updated_at'        => $this->server->format_datetime( $variation->get_date_modified() ),
+				'created_at'        => $this->server->format_datetime( $variation->get_date_created(), false, true ),
+				'updated_at'        => $this->server->format_datetime( $variation->get_date_modified(), false, true ),
 				'downloadable'      => $variation->is_downloadable(),
 				'virtual'           => $variation->is_virtual(),
 				'permalink'         => $variation->get_permalink(),
diff --git a/includes/api/legacy/v2/class-wc-api-customers.php b/includes/api/legacy/v2/class-wc-api-customers.php
index b1b3cb34aab..5f6c6238bdf 100644
--- a/includes/api/legacy/v2/class-wc-api-customers.php
+++ b/includes/api/legacy/v2/class-wc-api-customers.php
@@ -150,14 +150,14 @@ class WC_API_Customers extends WC_API_Resource {
 		$last_order    = $customer->get_last_order();
 		$customer_data = array(
 			'id'               => $customer->get_id(),
-			'created_at'       => $this->server->format_datetime( $customer->get_date_created() ),
+			'created_at'       => $this->server->format_datetime( $customer->get_date_created(), false, true ),
 			'email'            => $customer->get_email(),
 			'first_name'       => $customer->get_first_name(),
 			'last_name'        => $customer->get_last_name(),
 			'username'         => $customer->get_username(),
 			'role'             => $customer->get_role(),
 			'last_order_id'    => is_object( $last_order ) ? $last_order->get_id() : null,
-			'last_order_date'  => is_object( $last_order ) ? $this->server->format_datetime( $last_order->get_date_created() ) : null,
+			'last_order_date'  => is_object( $last_order ) ? $this->server->format_datetime( $last_order->get_date_created(), false, true ) : null,
 			'orders_count'     => $customer->get_order_count(),
 			'total_spent'      => wc_format_decimal( $customer->get_total_spent(), 2 ),
 			'avatar_url'       => $customer->get_avatar_url(),
diff --git a/includes/api/legacy/v2/class-wc-api-orders.php b/includes/api/legacy/v2/class-wc-api-orders.php
index 99104de409b..c13804efe2a 100644
--- a/includes/api/legacy/v2/class-wc-api-orders.php
+++ b/includes/api/legacy/v2/class-wc-api-orders.php
@@ -156,9 +156,9 @@ class WC_API_Orders extends WC_API_Resource {
 		$order_data = array(
 			'id'                        => $order->get_id(),
 			'order_number'              => $order->get_order_number(),
-			'created_at'                => $this->server->format_datetime( get_gmt_from_date( date( 'Y-m-d H:i:s', $order->get_date_created() ) ) ),
-			'updated_at'                => $this->server->format_datetime( get_gmt_from_date( date( 'Y-m-d H:i:s', $order->get_date_modified() ) ) ),
-			'completed_at'              => $this->server->format_datetime( get_gmt_from_date( date( 'Y-m-d H:i:s', $order->get_date_completed() ) ) ),
+			'created_at'                => $this->server->format_datetime( $order->get_date_created(), false, true ) ),
+			'updated_at'                => $this->server->format_datetime( $order->get_date_modified(), false, true ) ),
+			'completed_at'              => $this->server->format_datetime( $order->get_date_completed(), false, true ) ),
 			'status'                    => $order->get_status(),
 			'currency'                  => $order->get_currency(),
 			'total'                     => wc_format_decimal( $order->get_total(), $dp ),
@@ -1534,7 +1534,7 @@ class WC_API_Orders extends WC_API_Resource {
 
 			$order_refund = array(
 				'id'         => $refund->id,
-				'created_at' => $this->server->format_datetime( get_gmt_from_date( date( 'Y-m-d H:i:s', $refund->get_date_created() ) ) ),
+				'created_at' => $this->server->format_datetime( $refund->get_date_created(), false, true ) ),
 				'amount'     => wc_format_decimal( $refund->get_amount(), 2 ),
 				'reason'     => $refund->get_reason(),
 				'line_items' => $line_items,
diff --git a/includes/api/legacy/v2/class-wc-api-products.php b/includes/api/legacy/v2/class-wc-api-products.php
index fd26b897dc3..c4a982743fa 100644
--- a/includes/api/legacy/v2/class-wc-api-products.php
+++ b/includes/api/legacy/v2/class-wc-api-products.php
@@ -684,8 +684,8 @@ class WC_API_Products extends WC_API_Resource {
 		return array(
 			'title'              => $product->get_name(),
 			'id'                 => $product->get_id(),
-			'created_at'         => $this->server->format_datetime( $product->get_date_created() ),
-			'updated_at'         => $this->server->format_datetime( $product->get_date_modified() ),
+			'created_at'         => $this->server->format_datetime( $product->get_date_created(), false, true ),
+			'updated_at'         => $this->server->format_datetime( $product->get_date_modified(), false, true ),
 			'type'               => $product->get_type(),
 			'status'             => $product->get_status(),
 			'downloadable'       => $product->is_downloadable(),
@@ -769,8 +769,8 @@ class WC_API_Products extends WC_API_Resource {
 
 			$variations[] = array(
 				'id'                => $variation->get_id(),
-				'created_at'        => $this->server->format_datetime( $variation->get_date_created() ),
-				'updated_at'        => $this->server->format_datetime( $variation->get_date_modified() ),
+				'created_at'        => $this->server->format_datetime( $variation->get_date_created(), false, true ),
+				'updated_at'        => $this->server->format_datetime( $variation->get_date_modified(), false, true ),
 				'downloadable'      => $variation->is_downloadable(),
 				'virtual'           => $variation->is_virtual(),
 				'permalink'         => $variation->get_permalink(),
diff --git a/includes/api/legacy/v3/class-wc-api-coupons.php b/includes/api/legacy/v3/class-wc-api-coupons.php
index 42623c05a6c..92fc4ea76e9 100644
--- a/includes/api/legacy/v3/class-wc-api-coupons.php
+++ b/includes/api/legacy/v3/class-wc-api-coupons.php
@@ -134,7 +134,7 @@ class WC_API_Coupons extends WC_API_Resource {
 				'usage_limit_per_user'         => $coupon->get_usage_limit_per_user() ? $coupon->get_usage_limit_per_user() : null,
 				'limit_usage_to_x_items'       => (int) $coupon->get_limit_usage_to_x_items(),
 				'usage_count'                  => (int) $coupon->get_usage_count(),
-				'expiry_date'                  => $coupon->get_date_expires() ? $this->server->format_datetime( $coupon->get_date_expires() ) : null,
+				'expiry_date'                  => $coupon->get_date_expires() ? $this->server->format_datetime( $coupon->get_date_expires(), false, true ) : null,
 				'enable_free_shipping'         => $coupon->get_free_shipping(),
 				'product_category_ids'         => array_map( 'absint', (array) $coupon->get_product_categories() ),
 				'exclude_product_category_ids' => array_map( 'absint', (array) $coupon->get_excluded_product_categories() ),
diff --git a/includes/api/legacy/v3/class-wc-api-orders.php b/includes/api/legacy/v3/class-wc-api-orders.php
index 8057dd0b4d4..6947e560eba 100644
--- a/includes/api/legacy/v3/class-wc-api-orders.php
+++ b/includes/api/legacy/v3/class-wc-api-orders.php
@@ -162,9 +162,9 @@ class WC_API_Orders extends WC_API_Resource {
 			'id'                        => $order->get_id(),
 			'order_number'              => $order->get_order_number(),
 			'order_key'                 => $order->get_order_key(),
-			'created_at'                => $this->server->format_datetime( get_gmt_from_date( date( 'Y-m-d H:i:s', $order->get_date_created() ) ) ),
-			'updated_at'                => $this->server->format_datetime( get_gmt_from_date( date( 'Y-m-d H:i:s', $order->get_date_modified() ) ) ),
-			'completed_at'              => $this->server->format_datetime( get_gmt_from_date( date( 'Y-m-d H:i:s', $order->get_date_completed() ) ) ),
+			'created_at'                => $this->server->format_datetime( $order->get_date_created(), false, true ) ),
+			'updated_at'                => $this->server->format_datetime( $order->get_date_modified(), false, true ) ),
+			'completed_at'              => $this->server->format_datetime( $order->get_date_completed(), false, true ) ),
 			'status'                    => $order->get_status(),
 			'currency'                  => $order->get_currency(),
 			'total'                     => wc_format_decimal( $order->get_total(), $dp ),
@@ -1579,7 +1579,7 @@ class WC_API_Orders extends WC_API_Resource {
 
 			$order_refund = array(
 				'id'         => $refund->id,
-				'created_at' => $this->server->format_datetime( get_gmt_from_date( date( 'Y-m-d H:i:s', $refund->get_date_created() ) ) ),
+				'created_at' => $this->server->format_datetime( $refund->get_date_created(), false, true ) ),
 				'amount'     => wc_format_decimal( $refund->get_amount(), 2 ),
 				'reason'     => $refund->get_reason(),
 				'line_items' => $line_items,
diff --git a/includes/api/legacy/v3/class-wc-api-products.php b/includes/api/legacy/v3/class-wc-api-products.php
index 22977f38415..cdb2f73146d 100644
--- a/includes/api/legacy/v3/class-wc-api-products.php
+++ b/includes/api/legacy/v3/class-wc-api-products.php
@@ -1129,8 +1129,8 @@ class WC_API_Products extends WC_API_Resource {
 		return array(
 			'title'              => $product->get_name(),
 			'id'                 => $product->get_id(),
-			'created_at'         => $this->server->format_datetime( $product->get_date_created() ),
-			'updated_at'         => $this->server->format_datetime( $product->get_date_modified() ),
+			'created_at'         => $this->server->format_datetime( $product->get_date_created(), false, true ),
+			'updated_at'         => $this->server->format_datetime( $product->get_date_modified(), false, true ),
 			'type'               => $product->get_type(),
 			'status'             => $product->get_status(),
 			'downloadable'       => $product->is_downloadable(),
@@ -1227,8 +1227,8 @@ class WC_API_Products extends WC_API_Resource {
 
 			$variations[] = array(
 				'id'                 => $variation->get_id(),
-				'created_at'         => $this->server->format_datetime( $variation->get_date_created() ),
-				'updated_at'         => $this->server->format_datetime( $variation->get_date_modified() ),
+				'created_at'         => $this->server->format_datetime( $variation->get_date_created(), false, true ),
+				'updated_at'         => $this->server->format_datetime( $variation->get_date_modified(), false, true ),
 				'downloadable'       => $variation->is_downloadable(),
 				'virtual'            => $variation->is_virtual(),
 				'permalink'          => $variation->get_permalink(),